overhead projector
Plural
overhead projectors
1
a device that projects images or text from a transparency onto a screen or wall
An overhead projector is a device that displays images, text, or diagrams onto a surface, such as a wall or projection screen, by shining light through transparent sheets. It is commonly used in classrooms, meetings, and presentations. The user places a transparent sheet with written or printed content on the projector’s glass surface, and the image is magnified and shown to the audience. Overhead projectors are often used for teaching or displaying visual information to a group, offering a simple way to share content in real time.
- The teacher used an overhead projector to display the lesson notes to the class.
- The presenter set up the overhead projector for the business meeting to showcase the sales figures.
- She prepared transparent slides to use with the overhead projector during her presentation.
- The conference room was equipped with an overhead projector for training sessions.
- The university lecture hall had multiple overhead projectors for large class presentations.